Macintosh RAM Configurations for Power Macintosh Computers. We DO NOT GUARANTEEthese listings are complete or accurate. Check other Web sources including Apple
"Applecare Knowledge Base archives" for complete information. Corrections would
be appreciated.
Macs prior to the PowerMac use either 30-pin SIMMS or 72-pin SIMMS (2K refresh), with
one exception: the Mac IIfx uses 64-pin SIMMS. The Mac 128K and 512K do
not accept additional memory. Multiple entries for a model means it may
accept various kinds of memory. Definitions of these terms are available via a Web
search.
Power Mac 4400, 7220 168-pin DIMM 3.3 V unbuffered EDO
Power Mac 5200/75 LC, 5260/100 72-pin SIMM 2K refresh
Performa 5200, 5210, 5215, 5220 72-pin SIMM 2K refresh
Performa 5260, 5300, 5300/100LC 72-pin SIMM 2K refresh
Power Mac 5400 Performa 6400, 6360 168-pin buffered EDO or FPM DIMM 5V
Power Mac 5400 Performa 6400 168-pin buffered EDO DIMM 5V
Power Mac 5500, 6500 168-pin DIMM 5V EDO
Performa 6200, 6205, 6214, 6216, 6218, 6220, 6230, 6290, 6300, 6480 72-pin SIMM 2K refresh
Power Mac 6100, Performa 6110, 6112, 6115, 6116, 6117, 6118 72-pin SIMM 4K refresh
Power Mac 7100 72-pin SIMM 4K refresh
Power Mac 7200 168-pin 5V DIMM **
Power Mac 7500 Series 168-pin 5V DIMM
Power Mac 7300, 7600 Series 168-pin 5V DIMM
Power Mac 8100 72-pin SIMM2 4K refresh
Power Mac 8500, 8600 Series 168-pin 5V DIMM
Power Mac 9500, 9600 Series 168-pin 5V DIMM
G3, G4 Macs: not listed here yet.
The Power Mac 7300, 7500, 7600, 8500, 8600, 9500, and 9600
series computers have a memory interleaving feature. Install identical pairs
of DIMMS in same-numbered slots to improve performance.
**Note: for PowerMac 7200's, EDO DIMM memory MAY DAMAGE THE MOTHERBOARD! according
to Apple. For the other DIMM models EDO memory will function but not as EDO memory. Check
Apple's document "Power Macintosh: Using FPM, EDO, SDRAM, and SGRAM", Apple
Article ID: 19456, for details.
The PowerMac 6100 will accept 64MB* 72 pin SIMMS. Other Macs which accept
72 pin SIMMS will only see 16MB of a 64MB SIMM.
This document last updated: Aug 1 2002
